DOLOMITES - Annexes 2-8 - Provincia di Udine

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NOMINATION OF THE DOLOMITES FOR INSCRIPTION ON THE WORLD NATURAL HERITAGE LIST UNESCO 18 overthrust plains. The Austrian geologist also made a synthesis on the seismic activity of the region. Following this major contribution, the XIX terminated with a co-ordinated geological mapping effort by the Austro-Hungarian Administrations and by a series of in depth palaeontological contributions (i.e. Guido Stache, Franz Hauer, Ernst Kittl studies, among others), defining the general biostratigraphic framework of the Triassic biostratigraphy and the mutual relationships between the Triassic stages, all named after ancient peoples of the Dolomites and adjacent Alpine regions (Scythian, Anisian, Ladinian, Carnian, Norian and Rhaetian). It is worthy to finish this overview on the geological study development in the Dolomites giving a tribute to the British Maria Ogilvie Gordon (1864-1939). Her strong personality made her the first geologist woman to obtain both a DSc and a Ph.D title. She studied the relationships between carbonate platforms, basinal and volcanic bodies in the Dolomites (1893, 1894), the Monzoni and Buffaure magmatites (1903), and still worked on the Sasso Lungo-Sasso Piatto Massif during the Thirties, climbing the massif at the age of 70. But we are now entering the complex evolution of the geological investigation on the unfathomed complexity of the Dolomites area during the last century, a topic beyond the scope of this synthetic introduction. Regional tectonic setting The north-central portion of the Southern Alps is comprised of a distinct geologic complex called the Dolomities (Doglioni, 1987; Castellarin et alii, 1998; Castellarin & Cantelli, 2000), which preserves a unique record of several important Earth history events. Over the course of millions of years, the Permian landmass Gondwana drifted northward and collided with Laurasia. This collision assembled most of the world’s continental landmass into one supercontinent Pangaea, which extended from pole to pole. At the time Pangea was flanked on its eastern coast by a wide tropical sea, Tethys. Over the subsequent eras the Tethys sea closed, the only remnants of which today are the Mediterranean, the Black and the Caspian Seas. Tectonic scheme of Dolomites Reagion (Castellarin et al. 1998)
NOMINATION OF THE DOLOMITES FOR INSCRIPTION ON THE WORLD NATURAL HERITAGE LIST UNESCO 19 The Dolomites formed through the deformation of the passive margin of the (Mesozoic) Tethys Ocean into a non metamorphic south-vergent thrust of the Alpine Belt. The stratigraphy of the Dolomites records a variety of events and indicates a dramatic and complex history of tectonic and magmatic events including: a) Permian rifting, marked by a massive magmatism that leads to a lithospheric anisotropy significantly influencing the Mesozoic and Cenozoic evolution of the area (Cassinis et alii, 1998; Cassinis & Neri, 1999; Massari et alii, 1994). b) Middle Triassic transtensional tectonics (Doglioni, 1982; 1984; Doglioni & Neri, 1989; Blendinger, 1983; 1985; Brandner, 1984; Gianolla et alii, 1998a), associated with differential subsidence and uplifting, ended during the Late Ladinian with the emplacement of epicrustal intrusions (Monzoni, Predazzo, Cima Pape) and shoshonitic volcanism (Sloman, 1989). These Middle Triassic events deeply reshaped the morphology of the area and in particular the post-volcanic carbonate platforms. c) Continental margin rifting, started in the Late Triassic and climaxing into the western Tethys opening, during Jurassic times (Bosellini, 1973; Bosellini & Winterer, 1981; Doglioni, 1987). d) Polyphasic compressional deformation, mainly brittle in nature, affecting the region during Tertiary times that generated large overthrusting and strike slip deformation (Castellarin, 1979; Doglioni & Castellarin, 1985; Doglioni & Bosellini, 1987; Castellarin et alii, 1992; Caputo, 1996; 1997; Schönborn, 1999). Tectonic scheme of Dolomites Reagion (Castellarin et al. 1998) Section of Dolomites Region (Castellarin et al. 1998)
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ANNEX 3 A3.1 LETTERS OF SUPPORT
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Systems: 1. Pelmo - Nuvolau 2. Marm
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visitors NOMINATION OF THE DOLOMITE
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others (malghe, alberghi, ristorant
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mountain cabins others (malghe, alb
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visitors footpath NOMINATION OF THE
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ANNEX 5 A5.1 PROTECTIVE DESIGNATION
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49. 50. 51. NOMINATION OF THE DOLOM
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ANNEX 7 A7.1 DVD (PHOTOGRAPHS) A7.2
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fauna NOMINATION OF THE DOLOMITES F
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ANNEX 8 A8.1 OTHER LOCAL AUTHORITIE
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DOLOMITES - Annexes 2-8 - Provincia di Udine

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